Railway truck



Jan.. 8, 1935. A, A. Ross v 1,987,419

RAILWAY TRUCK Filed Sept. 28, 1932 i a @El W Inv ent ori:

dif Aubreg AROSS, l I' JJ. (ft/ew His Attorneg.

Panneau. s, 193s 1,987,419

UNITED STATES PATENT^OFFICE 1,987,419 aAmwAv TRUCK Aubrey A. Ross, Marblehead, Mass., assigner to GeneralA Electric Company, a corporation of New York Application September 28, 1932, Serial No. 635,204

3 Claims. (Cl. 105-108) My invention relates to railway trucks and 'Ihe reduction gearing through which power is especially to the type using a quill shaft artransmitted from the motor 18 to the axle 11 inranged on the axle thereof for transmitting power cludes a'housing 23 which is bolted at 24 to longi-A from the driving motor to the axle. tudinal tie-bars 25 extending between cross-bar 6 The object of my invention is to provide an 19 and the end of the truck frame, as shown in 5 improved and simplined construction of a railway Figs. 3 and 4. This reduction gearing includes a truck, wherein the vehicle frame and apparatus pinion 26 mounted on a shaft 27, which is coupled carried thereby are free to move relative to the to the motor shaft, as indicated at 28 in Fig. 1, axle when the vehicle passes over any irreguand which is mounted in bearings in the sides of l larity in the track. I accomplish this object by the housing 23, Power is transmitted from the 107.5k

providing a truck having a frame spring borne on 'pinion 26 to the axle 11 by gear 30 mounted on a an axle, which is coupled to a source of power carcountershaft 29 carried by the housing and a Tied by the frame through a quill Shaft arranged gear 31 which engages a driving gear 32 mounted about a prtn 0f the axle, and a torque transf on a sleeve 33 which is mounted in bearings 34 in Y l mitting element flexibly connecting the quill the sides of the housing `23, the sleeve 33 being 15 shaft to the axle. arranged on the axle 11, as shown in Figs. 2, 3 My invention will be more fully set forth in and 4. The pinion shaft 27, the countershaft 29, the 'OlOWins description referring to the accomand the sleeve 33 are preferably mounted in ball PaDyi-Ug drawing. and the features of novelty bearings in the side walls of housing 23. The which characterize my invention will be pointed spring suspension system supporting the truck 20 out with particularity in the claims annexed to frame 10 on the axle 11 is designed so that with and forming a part of this specication. ordinary loading of the truck, the axle 11 is sub- In the drawing, Fig. l is a plan view of a railstantially coaxial with the sleeve 33, and the axis way truck embodying my invention; Fig. 2 is a of the sleeve 33 is displaced only slightly from the cross sectional view on the line 2-2 of Fig. l, axis of the axle 11 upon variations in loading of .25

showing an axle, quill shaft and the flexible couthe truck. P11113; Fig. 3 is a cross-sectional view on the line It will be understood that when the wheels 3 3 of Fig. 2, showing a reduction gear arrangepass over any irregularity in the track 35, on ment for driving the quill shaft; Fig. 4 is a cross which the wheels are running. the spring sus- 39 sectional view on the line 4 4 of Fig. 3, and Fig. pension system will cause a slight upand down 30 5 is a section on the line 5-5 of Fig. 2. movement or tilting of the truck frame with Referring to the drawing, the railway truck, respect to the axle11. It is, therefore, necessary whichI have illustrated embodying my invention, to provide a suitable ilexible coupling between comprises a rectangular supporting frame 10 the sleeve 33 and the axle 1l which transmit 35 spring borne on the axle 1l to which the drivingy power from the sleeve and the axle when this 35 wheels l2 oi the truck are secured. The frame movement occurs. I accomplish this by pro- 10 is spring supported on the axle 1l by coil viding a coupling including a tubel 36 about the Springs 13 retained under compression between same inside diameter as sleeve 33 having anthe seat 14 secured to the truck frame and a seat nular spur gears 37 and 38 secured to the oppo- 15 formed in the journal boxes 16 which are arsite ends of the tube 36. The gear 37 is closely ranged on the ends of the axle l1. The journal tted within an annular internal gear 39 of boxes are arranged in pedestal jaws 1'7 in the substantially the same pitch diameter which is sides of the truck frame. bolted at 40 to a ange 41 of a hub 42 rigidly In order to minimize the unsprung weight of secured to the sleeve 33. The gear 37 is loosely the truck I provide a motor and reduction geartted on a reduced extension 43 on the sleeve 33 ing mounted on the truck frame l0 which is spring and is prevented from being displaced by an borne on the Wheels and axle and flexibly coupled annular retaining plate 44. The gear 38 is closely to the wheels and axle for driving them. In the tted in an internal annular gear 45 of subconstruction illustrated in the drawing, as an exstantially the same pitch diameter. which is bolted ample of one manner of carrying out my invenat 46 to a ange 47 of a hub 48 rigidly secured tion, a driving motor 18 is bolted to cross-member to the axle 11. The gear 38, which is loosely tted 19 oi' the truck frame, as indicated at 20, and is on hub 48, is prevented from being displaced also bolted at 2l to a longitudinal tie-bar 22 exby an annular retaining plate 49. A brake drum tending between the cross-member 19 and the end 50 is secured to the end of the sleeve 33 opposite of the truck frame. the gear 37 having brake shoes 51 and a lever 55 mechanism, indicated at 52, which is actuated by the brake rod 53 to bring the brake shoes into engagement with the brake drum. In order to prevent dust and dirt entering the sleeve 33 and causing undue Wear of the coupling, I provide a seal at the end of the sleeve 33 adjacent the brake drum 50 including a plurality of spaced apart annular plates 54 secured to the axle which are interleaved with a plurality of spaced apart plates 55 bolted to the brake drum at 56.

In the operation of the truck construction above described, the motor 18 transmits power to the axle 11 through the reduction gearing including pinion 26, gears 30, 31 and 32, sleeve 33 and the flexible coupling including the tube 36. Upon any movement of the truck frame with respect to the axle 11, the motor 18 and the reduction gearing which are carried by the frame 10 will be moved' in the same relation to the axle 11, but power will be transmitted from the motor to the axle 11 through the reduction gearing and the tube 36 in all positions of the truck frame with respect to the axle 11.

Although .I have shown a particular embodiment of my invention as applied to a railway truck, I do not desire my invention to be limited to the particular arrangement described, and I intend in the appended claims to cover all modifications which do not depart from the spirit and scope of my invention.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. A truck for locomotives or cars lhaving wheels and an axle, a driving motor carried by by said quill shaft.

2. `A truck for locomotives or cars having wheels and an axle, a frame spring borne on said axle, a driving motor carried by said frame,

a quill shaft carried by said frame and arranged about said axle, means for coupling said motor to said quill shaft intermediate the ends thereof, means including a torque transmitting element arranged about said axle, and flexibly coupled at one end thereof to one end of said quill shaft and at the other end thereof to said axle for transmitting torque from said quill shaft to said axle, and a brake associated with the other end of said quill shaft.

3. A truck for locomotives or cars having Wheels and an axle, a frame spring borne on said axle, a driving motor carried by said frame, a quill shaft arranged about said axle, means including reduction gearing connecting said motor and quill shaft for supporting said quill shaft on said frame, a torque transmitting element arranged about said axle ilexibly coupled v at one end thereof to said quill shaft and exibly coupled at the other end thereof to said axle, and a brake element carried by said quill shaft.

A. ROSS. 

